Make sure the model you want to catalog is modded in.

The catalog tool uses the game to create renders. It follows the following chain of priorities:

modded files from tmods

modded files from blueprints/override

original models

if you want to make a render of a complete model that has no _ui file you can mod a blueprint over a deco item and catalog that deco item

Run the catalog.bat file

In the Trove live directory, shift + right-click in the blank space and choose "Open command window here". This will open the command prompt where you can call upon your created .bat file. 512x512 is a nice size for renders, but i've included the other options so you make that choice for yourself.

Type "catalog_512"

Type the identifier for the to-be-rendered blueprint(s). It will render all pieces if you're vague on the identifier, for example

golem will render all models with golem in their name.

spirit_tank_golem will render all pieces of the guardian golem.

spirit_tank_golem_ui will only generate one .png file.

You can find the rendered images in the /catalog/ subfolder.

Warning: the renders fail if the blueprints are too big: catalogging dungeons or frigates is not useful.